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Keeping exterior brick masonry walls looking their best requires time and effort. When you paint, proper preparation is key. Here’s how to go about it.
Listen to BOB VILA ON PAINTING EXTERIOR BRICK WALLS or read the text below:
First, use a sandblaster to get rid of any flaked or peeling paint. Next, clean the brick using a solution of trisodium phosphate—TSP for short.
If the brick hasn’t seen a previous coat of paint, apply a masonry sealer. Oil-based, pigmented sealers work best, since they soak deeper into the brick. Apply the sealer using a long-nap roller in combination with an angled-sash brush. Make sure you fully seal the surface, including mortar joints.
Once the sealer’s dry, use a pole sander and medium-grit sandpaper to scuff-sand the wall. After that, you’re ready to paint. Choose a moisture-resistant masonry paint. A single coat is usually enough, but if you want to apply a second coat, scuff-sand the finish first.
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